Also known as iron bronze, C19400 (CuFe2P), Copper-Iron alloy has a microstructure made of α-Cu and Fe. The alloy has higher strengths of ETP copper. It also has excellent electrical and thermal conductivity, along with good fatigue strength. The alloy has the excellent electrical conductivity of copper and the strength of iron. The strength of iron, however, is offset by the addition of phosphorus, which increases corrosion resistance and machinability. With good thermal and electrical conductivity, C19400 is also used in many applications. The conductivity of the alloy is about 60% IACS, which is a good value. The alloy is used in applications where high strength and corrosion resistance are required. The lead frames and separator components in integrated circuits are the most common. The alloy is also used in contacts and connectors, telecommunication cables, and fasteners. The many applications demonstrate the excellent formability and corrosion resistance of the alloy. C19400 can also be made as fully etched and partially etched sheets.

Properties Of C19400 CuFe2P Copper Alloy